this derivation will be built:
  /nix/store/h8bk79vx9yfzykj2j8ifcfg03s1gb5fx-treefmt-check.drv
building '/nix/store/h8bk79vx9yfzykj2j8ifcfg03s1gb5fx-treefmt-check.drv'
treefmt-check> traversed 255 files
treefmt-check> emitted 135 files for processing
treefmt-check> formatted 135 files (0 changed) in 757ms

post-build step Upload to niks3: ok
time=2026-09-02T14:53:26.482Z level=INFO msg="Uploading 0 paths to 127.0.0.1 (1 already cached)"
time=2026-09-02T14:53:26.824Z level=INFO msg="Uploading 1 narinfos"
time=2026-09-02T14:53:26.941Z level=INFO msg="Upload complete. (478ms)"